loop0: detected capacity change from 0 to 32768
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1159!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1db4/0x1de0 fs/ocfs2/aops.c:1219
Code: 00 48 c7 c6 0a 33 f4 8d ba 6a 04 00 00 48 c7 c1 e0 e3 11 8c e8 0d fe 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 cd 64 0b fe 90 <0f> 0b e8 c5 64 0b fe 90 0f 0b e8 bd 64 0b fe 90 0f 0b e8 b5 64 0b
RSP: 0018:ffffc9000e175c80 EFLAGS: 00010246
RAX: ffffffff83ba32d3 RBX: ffff888041992014 RCX: 0000000000100000
RDX: ffffc9000ebfa000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc9000e175fb0 R08: ffff88801fd831e3 R09: 1ffff11003fb063c
R10: dffffc0000000000 R11: ffffed1003fb063d R12: ffff88801273c000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888041992014
FS:  00007f3f7d1a06c0(0000) GS:ffff88808ca62000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2a1f0f5120 CR3: 000000004215f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x3316/0x41e0 fs/ocfs2/aops.c:1796
 ocfs2_write_begin+0x1c5/0x320 fs/ocfs2/aops.c:1884
 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4314
 ocfs2_file_write_iter+0x1663/0x1ed0 fs/ocfs2/file.c:2476
 __kernel_write_iter+0x41e/0x880 fs/read_write.c:621
 dump_emit_page fs/coredump.c:1299 [inline]
 dump_user_range+0xb89/0x12d0 fs/coredump.c:1373
 elf_core_dump+0x34c2/0x3ad0 fs/binfmt_elf.c:2111
 coredump_write+0x1219/0x1950 fs/coredump.c:1050
 do_coredump fs/coredump.c:1127 [inline]
 vfs_coredump+0x36a9/0x4280 fs/coredump.c:1201
 get_signal+0x1107/0x1330 kernel/signal.c:3019
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3f7c39bf79
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3f7d1a00e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 00000000000000ca RBX: 00007f3f7c615fa8 RCX: 00007f3f7c39bf79
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f3f7c615fac
RBP: 00007f3f7c615fa0 R08: 3fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3f7c616038 R14: 00007fffc0290d40 R15: 00007fffc0290e28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1db4/0x1de0 fs/ocfs2/aops.c:1219
Code: 00 48 c7 c6 0a 33 f4 8d ba 6a 04 00 00 48 c7 c1 e0 e3 11 8c e8 0d fe 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 cd 64 0b fe 90 <0f> 0b e8 c5 64 0b fe 90 0f 0b e8 bd 64 0b fe 90 0f 0b e8 b5 64 0b
RSP: 0018:ffffc9000e175c80 EFLAGS: 00010246
RAX: ffffffff83ba32d3 RBX: ffff888041992014 RCX: 0000000000100000
RDX: ffffc9000ebfa000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc9000e175fb0 R08: ffff88801fd831e3 R09: 1ffff11003fb063c
R10: dffffc0000000000 R11: ffffed1003fb063d R12: ffff88801273c000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888041992014
FS:  00007f3f7d1a06c0(0000) GS:ffff88808ca62000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f7d1456a0 CR3: 000000004215f000 CR4: 0000000000352ef0